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@girish said: Could it be you have a folder named "- Bulk" ? Yes, many of my folders have a - in their name so they sorted on top of folder lists. From /home/yellowtent/platformdata/logs/mail/app.log⁠: 2026-08-26T06:50:10+02:00 [POST] /fts_config 2026-08-26T06:50:10+02:00 2026-08-26 04:50:10,632 INFO waiting for dovecot to stop 2026-08-26T06:50:11+02:00 2026-08-26 04:50:11,741 INFO stopped: dovecot (exit status 0) 2026-08-26T06:50:11+02:00 2026-08-26 04:50:11,745 INFO spawned: 'dovecot' with pid 7630 2026-08-26T06:50:11+02:00 Warning: fd limit (ulimit -n) is lower than required under max. load (1024 < 1500), because of default_client_limit 2026-08-26T06:50:12+02:00 2026-08-26 04:50:12,771 INFO success: dovecot entered RUNNING state, process has stayed up for > than 1 seconds (startsecs) 2026-08-26T06:50:11+02:00 2026-08-26 04:50:11,741 INFO stopped: dovecot (exit status 0) 2026-08-26T06:50:11+02:00 2026-08-26 04:50:11,745 INFO spawned: 'dovecot' with pid 7630 2026-08-26T06:50:11+02:00 Warning: fd limit (ulimit -n) is lower than required under max. load (1024 < 1500), because of default_client_limit 2026-08-26T06:50:12+02:00 2026-08-26 04:50:12,771 INFO success: dovecot entered RUNNING state, process has stayed up for > than 1 seconds (startsecs) 2026-08-26T06:50:21+02:00 2026-08-26 04:50:21,953 INFO spawned: 'solr' with pid 7877 2026-08-26T06:50:22+02:00 2026-08-26 04:50:22,011 WARN exited: solr (exit status 1; not expected) 2026-08-26T06:50:23+02:00 2026-08-26 04:50:23,014 INFO spawned: 'solr' with pid 7925 2026-08-26T06:50:24+02:00 2026-08-26 04:50:24,146 INFO success: solr entered RUNNING state, process has stayed up for > than 1 seconds (startsecs) 2026-08-26T06:50:24+02:00 2026-08-26 04:50:24,376 INFO spawned: 'tika' with pid 8014 2026-08-26T06:50:25+02:00 2026-08-26 04:50:25,931 INFO success: tika entered RUNNING state, process has stayed up for > than 1 seconds (startsecs) [kdj@cloudron mail]$ tail app.log 2026-08-26T06:50:29+02:00 ==> Indexing mailbox - Bulk/Apartment for user: user@domain.com 2026-08-26T06:50:29+02:00 index: invalid option -- ' ' 2026-08-26T06:50:29+02:00 ==> Failed to index mailbox - Bulk/Apartment for user: user@domain.com: doveadm index -u user@domain.com - Bulk/Apartment failed with code 64

I have increased the solr indexing timeout and reduced the indexing batch size. Maybe it helps on slower machines .

That's great, thanks @girish! It seems to work now. I enabled it and followed the steps in the new documentation you linked to, and then ran doveadm -c /run/dovecot.conf index -A '*' from the mail container which started indexing everything. Just waiting for the indexing to finish to confirm it'll be good.

This was a regression in Cloudron 7.7. Thanks for reporting @AartJansen Fixed in https://git.cloudron.io/cloudron/box/-/commit/1afa2e87ec93881ebcd1f79d83d4477467b40770

@girish I think that would be a good change. I also think I should have gone through the Troubleshooting document sooner : https://docs.cloudron.io/troubleshooting/ Thanks!

If you go down this route, be sure to search via roundcube or SOGo and not rainloop because the latter does not support recursive search. A while ago @samir shared a recipe with me to make doveadm work, let me see if that still works when I find the time.

@necrevistonnezr I noticed the first time enabling it,it has to index each mailbox which takes time depending on how big they are. I am sure if you left it as-is for a bit it would have started on it's own. Glad it's working now

I found that in Thundberbird, if you press Ctrl+K, it will use IMAP search. On Android K-9, there is Settings -> Account Settings -> Search -> Enable server search.